Some of the most breathtaking views in the Universe are created by nebulae — hot, glowing clouds of gas. This NASA/ESA Hubble Space Telescope image shows the center of the Lagoon Nebula, an object with a deceptively tranquil name, in the constellation of Sagittarius. The region is filled with intense winds from hot stars, churning funnels of gas, and energetic star formation, all embedded within an intricate haze of gas and pitch-dark dust.
Image Credit: NASA, ESA, J. Trauger
Explanation from: http://www.nasa.gov/image-feature/stormy-seas-in-sagittarius